Finding the Fourth Proportional to 2,472.60, 3,710.27 and 1,012.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,472.60 : 3,710.27 = 1,012.78 : x
2. Step 2: Convert to fraction form
   2,472.60/3,710.27 = 1,012.78/x
3. Step 3: Cross multiply
   2,472.60x = 3,710.27 × 1,012.78
4. Step 4: Simplify right side
   2,472.60x = 3,757,663.64
5. Step 5: Solve for x
   x = 3,757,663.64/2,472.60
6. Step 6: Final answer
   x = 1,519.72